Whilst it may look slightly different, it is a standard 2-point Strat style bridge, so any Strat 2-point bridge (if there are metric and imperial options then it will be the metric one) should be a simple drop-in replacement. I have a very similar Wilkinson bridge (WVPSBCR) waiting to go in a still to be purchased project.
Better quality than the kit bridge with a steel block. I think that Wilkinson bridge has now been discontinued, as it was hard to find but it was going very cheaply.
The trem block hole is offset relative to the posts because the trem block is also offset on the bridge plate as the trem arm fits in one end of the block, hence the offset.
Hope that helps.